[PATCH 7/9] dmaengine: consolidate initialization of cookies
From: Russell King - ARM Linux <hidden>
Date: 2012-03-06 22:35:47
Subsystem:
arm/nomadik/ux500 architectures, dma generic offload engine subsystem, microchip at91 dma drivers, the rest · Maintainers:
Linus Walleij, Vinod Koul, Ludovic Desroches, Linus Torvalds
Provide a common function to initialize a channels cookie values. Signed-off-by: Russell King <redacted> --- drivers/dma/amba-pl08x.c | 3 +-- drivers/dma/at_hdmac.c | 4 ++-- drivers/dma/coh901318.c | 2 +- drivers/dma/dmaengine.h | 10 ++++++++++ drivers/dma/dw_dmac.c | 4 ++-- drivers/dma/ep93xx_dma.c | 3 +-- drivers/dma/intel_mid_dma.c | 4 ++-- drivers/dma/ipu/ipu_idmac.c | 6 ++---- drivers/dma/mpc512x_dma.c | 3 +-- drivers/dma/pch_dma.c | 4 ++-- drivers/dma/pl330.c | 2 +- drivers/dma/sirf-dma.c | 3 +-- drivers/dma/ste_dma40.c | 2 +- drivers/dma/timb_dma.c | 5 ++--- drivers/dma/txx9dmac.c | 4 ++-- 15 files changed, 31 insertions(+), 28 deletions(-)
diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c
index 2781a2b..13c4d08 100644
--- a/drivers/dma/amba-pl08x.c
+++ b/drivers/dma/amba-pl08x.c@@ -1707,8 +1707,7 @@ static int pl08x_dma_init_virtual_channels(struct pl08x_driver_data *pl08x, chan->name); chan->chan.device = dmadev; - chan->chan.cookie = 0; - chan->chan.completed_cookie = 0; + dma_cookie_init(&chan->chan); spin_lock_init(&chan->lock); INIT_LIST_HEAD(&chan->pend_list);
diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index 8a32974..5d225dd 100644
--- a/drivers/dma/at_hdmac.c
+++ b/drivers/dma/at_hdmac.c@@ -1103,7 +1103,7 @@ static int atc_alloc_chan_resources(struct dma_chan *chan) spin_lock_irqsave(&atchan->lock, flags); atchan->descs_allocated = i; list_splice(&tmp_list, &atchan->free_list); - chan->completed_cookie = chan->cookie = 1; + dma_cookie_init(chan); spin_unlock_irqrestore(&atchan->lock, flags); /* channel parameters */
@@ -1303,7 +1303,7 @@ static int __init at_dma_probe(struct platform_device *pdev) struct at_dma_chan *atchan = &atdma->chan[i]; atchan->chan_common.device = &atdma->dma_common; - atchan->chan_common.cookie = atchan->chan_common.completed_cookie = 1; + dma_cookie_init(&atchan->chan_common); list_add_tail(&atchan->chan_common.device_node, &atdma->dma_common.channels);
diff --git a/drivers/dma/coh901318.c b/drivers/dma/coh901318.c
index f350517..187bb9e 100644
--- a/drivers/dma/coh901318.c
+++ b/drivers/dma/coh901318.c@@ -915,7 +915,7 @@ static int coh901318_alloc_chan_resources(struct dma_chan *chan) coh901318_config(cohc, NULL); cohc->allocated = 1; - chan->completed_cookie = chan->cookie = 1; + dma_cookie_init(chan); spin_unlock_irqrestore(&cohc->lock, flags);
diff --git a/drivers/dma/dmaengine.h b/drivers/dma/dmaengine.h
index 1ca5e0e..17f983a 100644
--- a/drivers/dma/dmaengine.h
+++ b/drivers/dma/dmaengine.h@@ -9,6 +9,16 @@ #include <linux/dmaengine.h> /** + * dma_cookie_init - initialize the cookies for a DMA channel + * @chan: dma channel to initialize + */ +static inline void dma_cookie_init(struct dma_chan *chan) +{ + chan->cookie = DMA_MIN_COOKIE; + chan->completed_cookie = DMA_MIN_COOKIE; +} + +/** * dma_cookie_assign - assign a DMA engine cookie to the descriptor * @tx: descriptor needing cookie *
diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c
index acc3bc0..8b4be42 100644
--- a/drivers/dma/dw_dmac.c
+++ b/drivers/dma/dw_dmac.c@@ -979,7 +979,7 @@ static int dwc_alloc_chan_resources(struct dma_chan *chan) return -EIO; } - chan->completed_cookie = chan->cookie = 1; + dma_cookie_init(chan); /* * NOTE: some controllers may have additional features that we
@@ -1398,7 +1398,7 @@ static int __init dw_probe(struct platform_device *pdev) struct dw_dma_chan *dwc = &dw->chan[i]; dwc->chan.device = &dw->dma; - dwc->chan.cookie = dwc->chan.completed_cookie = 1; + dma_cookie_init(&dwc->chan); if (pdata->chan_allocation_order == CHAN_ALLOCATION_ASCENDING) list_add_tail(&dwc->chan.device_node, &dw->dma.channels);
diff --git a/drivers/dma/ep93xx_dma.c b/drivers/dma/ep93xx_dma.c
index 142ebf0..f25e83b 100644
--- a/drivers/dma/ep93xx_dma.c
+++ b/drivers/dma/ep93xx_dma.c@@ -854,8 +854,7 @@ static int ep93xx_dma_alloc_chan_resources(struct dma_chan *chan) goto fail_clk_disable; spin_lock_irq(&edmac->lock); - edmac->chan.completed_cookie = 1; - edmac->chan.cookie = 1; + dma_cookie_init(&edmac->chan); ret = edmac->edma->hw_setup(edmac); spin_unlock_irq(&edmac->lock);
diff --git a/drivers/dma/intel_mid_dma.c b/drivers/dma/intel_mid_dma.c
index 69ed1e6..9d82a84 100644
--- a/drivers/dma/intel_mid_dma.c
+++ b/drivers/dma/intel_mid_dma.c@@ -867,7 +867,7 @@ static int intel_mid_dma_alloc_chan_resources(struct dma_chan *chan) pm_runtime_put(&mid->pdev->dev); return -EIO; } - chan->completed_cookie = chan->cookie = 1; + dma_cookie_init(chan); spin_lock_bh(&midc->lock); while (midc->descs_allocated < DESCS_PER_CHANNEL) {
@@ -1099,7 +1099,7 @@ static int mid_setup_dma(struct pci_dev *pdev) struct intel_mid_dma_chan *midch = &dma->ch[i]; midch->chan.device = &dma->common; - midch->chan.cookie = 1; + dma_cookie_init(&midch->chan); midch->ch_id = dma->chan_base + i; pr_debug("MDMA:Init CH %d, ID %d\n", i, midch->ch_id);
diff --git a/drivers/dma/ipu/ipu_idmac.c b/drivers/dma/ipu/ipu_idmac.c
index bff9250..1880274 100644
--- a/drivers/dma/ipu/ipu_idmac.c
+++ b/drivers/dma/ipu/ipu_idmac.c@@ -1504,8 +1504,7 @@ static int idmac_alloc_chan_resources(struct dma_chan *chan) BUG_ON(chan->client_count > 1); WARN_ON(ichan->status != IPU_CHANNEL_FREE); - chan->cookie = 1; - chan->completed_cookie = -ENXIO; + dma_cookie_init(chan); ret = ipu_irq_map(chan->chan_id); if (ret < 0)
@@ -1633,8 +1632,7 @@ static int __init ipu_idmac_init(struct ipu *ipu) snprintf(ichan->eof_name, sizeof(ichan->eof_name), "IDMAC EOF %d", i); dma_chan->device = &idmac->dma; - dma_chan->cookie = 1; - dma_chan->completed_cookie = -ENXIO; + dma_cookie_init(dma_chan); dma_chan->chan_id = i; list_add_tail(&dma_chan->device_node, &dma->channels); }
diff --git a/drivers/dma/mpc512x_dma.c b/drivers/dma/mpc512x_dma.c
index 1382715..2ab0a3d 100644
--- a/drivers/dma/mpc512x_dma.c
+++ b/drivers/dma/mpc512x_dma.c@@ -733,8 +733,7 @@ static int __devinit mpc_dma_probe(struct platform_device *op) mchan = &mdma->channels[i]; mchan->chan.device = dma; - mchan->chan.cookie = 1; - mchan->chan.completed_cookie = mchan->chan.cookie; + dma_cookie_init(&mchan->chan); INIT_LIST_HEAD(&mchan->free); INIT_LIST_HEAD(&mchan->prepared);
diff --git a/drivers/dma/pch_dma.c b/drivers/dma/pch_dma.c
index c30f63e..c93bb045 100644
--- a/drivers/dma/pch_dma.c
+++ b/drivers/dma/pch_dma.c@@ -531,7 +531,7 @@ static int pd_alloc_chan_resources(struct dma_chan *chan) spin_lock_irq(&pd_chan->lock); list_splice(&tmp_list, &pd_chan->free_list); pd_chan->descs_allocated = i; - chan->completed_cookie = chan->cookie = 1; + dma_cookie_init(chan); spin_unlock_irq(&pd_chan->lock); pdc_enable_irq(chan, 1);
@@ -912,7 +912,7 @@ static int __devinit pch_dma_probe(struct pci_dev *pdev, struct pch_dma_chan *pd_chan = &pd->channels[i]; pd_chan->chan.device = &pd->dma; - pd_chan->chan.cookie = 1; + dma_cookie_init(&pd_chan->chan); pd_chan->membase = ®s->desc[i];
diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index 1993286..49c123f 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c@@ -304,7 +304,7 @@ static int pl330_alloc_chan_resources(struct dma_chan *chan) spin_lock_irqsave(&pch->lock, flags); - chan->completed_cookie = chan->cookie = 1; + dma_cookie_init(chan); pch->cyclic = false; pch->pl330_chid = pl330_request_channel(&pdmac->pif);
diff --git a/drivers/dma/sirf-dma.c b/drivers/dma/sirf-dma.c
index a760d98..a2cde85 100644
--- a/drivers/dma/sirf-dma.c
+++ b/drivers/dma/sirf-dma.c@@ -625,8 +625,7 @@ static int __devinit sirfsoc_dma_probe(struct platform_device *op) schan = &sdma->channels[i]; schan->chan.device = dma; - schan->chan.cookie = 1; - schan->chan.completed_cookie = schan->chan.cookie; + dma_cookie_init(&schan->chan); INIT_LIST_HEAD(&schan->free); INIT_LIST_HEAD(&schan->prepared);
diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index 07b82e3..1ea6d02 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c@@ -2172,7 +2172,7 @@ static int d40_alloc_chan_resources(struct dma_chan *chan) bool is_free_phy; spin_lock_irqsave(&d40c->lock, flags); - chan->completed_cookie = chan->cookie = 1; + dma_cookie_init(chan); /* If no dma configuration is set use default configuration (memcpy) */ if (!d40c->configured) {
diff --git a/drivers/dma/timb_dma.c b/drivers/dma/timb_dma.c
index 6383abb..7805996 100644
--- a/drivers/dma/timb_dma.c
+++ b/drivers/dma/timb_dma.c@@ -477,8 +477,7 @@ static int td_alloc_chan_resources(struct dma_chan *chan) } spin_lock_bh(&td_chan->lock); - chan->completed_cookie = 1; - chan->cookie = 1; + dma_cookie_init(chan); spin_unlock_bh(&td_chan->lock); return 0;
@@ -755,7 +754,7 @@ static int __devinit td_probe(struct platform_device *pdev) } td_chan->chan.device = &td->dma; - td_chan->chan.cookie = 1; + dma_cookie_init(&td_chan->chan); spin_lock_init(&td_chan->lock); INIT_LIST_HEAD(&td_chan->active_list); INIT_LIST_HEAD(&td_chan->queue);
diff --git a/drivers/dma/txx9dmac.c b/drivers/dma/txx9dmac.c
index bb7b3d9..40440f9 100644
--- a/drivers/dma/txx9dmac.c
+++ b/drivers/dma/txx9dmac.c@@ -1034,7 +1034,7 @@ static int txx9dmac_alloc_chan_resources(struct dma_chan *chan) return -EIO; } - chan->completed_cookie = chan->cookie = 1; + dma_cookie_init(chan); dc->ccr = TXX9_DMA_CCR_IMMCHN | TXX9_DMA_CCR_INTENE | CCR_LE; txx9dmac_chan_set_SMPCHN(dc);
@@ -1163,7 +1163,7 @@ static int __init txx9dmac_chan_probe(struct platform_device *pdev) dc->ddev->chan[ch] = dc; dc->chan.device = &dc->dma; list_add_tail(&dc->chan.device_node, &dc->chan.device->channels); - dc->chan.cookie = dc->chan.completed_cookie = 1; + dma_cookie_init(&dc->chan); if (is_dmac64(dc)) dc->ch_regs = &__txx9dmac_regs(dc->ddev)->CHAN[ch];
--
1.7.4.4